From owner-freebsd-questions@FreeBSD.ORG Fri Aug 17 20:11:23 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A69AE16A41B for ; Fri, 17 Aug 2007 20:11:23 +0000 (UTC) (envelope-from mark@messier.com) Received: from mainstreet.net (noc.mainstreet.net [207.5.0.45]) by mx1.freebsd.org (Postfix) with ESMTP id 8D90E13C428 for ; Fri, 17 Aug 2007 20:11:23 +0000 (UTC) (envelope-from mark@messier.com) Received: from [204.69.218.217] (cache.mainstreet.net [204.69.218.217]) (authenticated bits=0) by mainstreet.net (8.13.8/8.13.8) with ESMTP id l7HK0Huu084834 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Fri, 17 Aug 2007 13:00:17 -0700 (PDT) (envelope-from mark@messier.com) Mime-Version: 1.0 (Apple Message framework v752.2) Content-Transfer-Encoding: 7bit Message-Id: <4B90A9A7-D8D6-49C5-B097-00094486EF4A@messier.com> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed To: FreeBSD Mailing List From: Mark Messier Date: Fri, 17 Aug 2007 13:00:09 -0700 X-Mailer: Apple Mail (2.752.2) Subject: performance hints (6.2) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Aug 2007 20:11:23 -0000 I've got a freebsd 6.2 system, dual 2Ghz 5130 cpu, 4g ram, with raid5 Adaptec 2120s, running not much more than /usr/ports/mail/imap-uw and I'm having performance problems with only 20 IMAP users. I'm not swapping.. cpu is mostly idle, so I figure it must be I/O performance. Just to confirm, is that what the following show? Thanks, -mark last pid: 81212; load averages: 0.01, 0.08, 0.08 up 87+17:07:41 12:44:46 87 processes: 1 running, 86 sleeping CPU states: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle Mem: 542M Active, 2860M Inact, 271M Wired, 109M Cache, 214M Buf, 40M Free Swap: 4096M Total, 19M Used, 4077M Free # vmstat 5 procs memory page disk faults cpu r b w avm fre flt re pi po fr sr aa0 in sy cs us sy id 0 2 1 700876 214348 375 10 0 0 217 503 0 504 163 214 0 1 99 0 2 0 703064 204504 432 0 2 0 10431 9626 333 998 13331 3595 1 3 96 0 1 0 699548 162820 119 0 0 0 2340 0 86 431 3681 1332 0 1 99 0 1 0 699548 162820 0 0 0 0 0 0 0 259 603 608 0 0 100 0 0 1 699548 162836 0 0 0 0 6 0 11 243 476 590 0 0 100 0 1 0 699548 162840 11 0 0 0 11 0 0 294 724 681 0 0 100 0 2 0 702140 154740 399 0 0 0 534 0 13 351 6118 869 1 1 99 0 2 0 702140 169360 25 0 0 0 9605 10308 314 835 10632 3127 1 2 97 0 2 0 702140 182172 30 0 0 0 9717 10312 311 872 10589 3182 1 2 96 0 1 0 702076 214312 256 0 0 0 8907 10306 289 836 11190 3052 1 2 97 1 1 0 702056 169060 180 0 0 0 2430 0 86 440 3600 1339 0 0 99 0 1 0 702076 168944 271 0 0 0 304 0 6 349 3303 836 0 1 99 0 1 0 703428 167680 245 0 0 0 149 0 7 276 1350 689 0 0 100 1 1 0 707064 155304 9018 0 10 0 9034 0 84 785 15093 3682 2 4 94 1 1 0 706552 154300 2015 0 0 0 1731 0 18 505 4831 1419 0 1 99 0 3 0 705336 113604 506 0 0 0 2109 0 80 411 5056 1276 0 1 99 0 3 0 738504 159624 2422 0 0 0 8775 10335 273 813 8293 2972 1 3 96 0 4 0 720280 178408 146 0 0 0 1056 0 579 929 1252 3055 1 3 96 1 1 0 702528 195568 270 0 0 0 1061 0 194 527 33855 1418 3 4 93 0 1 0 701200 196416 17 0 0 0 45 0 1 251 1066 598 0 0 100 0 1 0 702856 195232 445 0 0 0 266 0 6 332 10429 816 1 1 98 0 1 0 703460 195044 324 0 0 0 245 0 5 301 1585 736 0 0 100 0 2 0 706052 147972 496 0 0 0 855 0 81 491 60244 1628 6 7 87 0 3 0 706456 114584 237 0 0 0 12094 10301 396 1162 15662 4454 1 3 95 2 1 0 706560 172896 879 0 0 0 13237 15463 410 1317 17773 4954 1 4 95 1 2 0 705072 131140 431 1 0 0 11914 9426 391 1096 14791 4204 1 3 96 0 3 0 705408 207584 338 0 0 0 11890 15461 389 1091 14699 4286 1 3 95 0 3 0 703808 215928 25 0 0 0 9965 10308 351 972 11946 3795 1 3 96 0 1 0 704916 201680 92 0 0 0 5981 5154 211 680 62050 2798 7 8 85 1 1 0 709872 206228 339 0 0 0 5037 5150 183 661 7084 2191 1 1 98 # iostat 5 tty aacd0 cpu tin tout KB/t tps MB/s us ni sy in id 0 16 96.21 44 4.17 0 0 1 0 99 0 47 15.42 11 0.17 0 0 0 0 100 0 9 111.87 246 26.83 1 0 2 0 97 0 9 115.72 262 29.60 1 0 2 0 98 0 9 122.42 344 41.14 1 0 2 0 96 0 9 110.45 96 10.35 1 0 1 0 99 0 9 2.67 1 0.00 0 0 0 0 100 0 9 17.05 8 0.13 1 0 1 0 98 0 9 21.89 4 0.08 0 0 0 0 100 0 9 101.85 97 9.65 0 0 1 0 99 0 9 37.27 10 0.36 1 0 0 0 99 0 9 0.00 0 0.00 0 0 0 0 100 0 79 11.98 22 0.26 1 0 0 0 99 1 566 17.80 8 0.14 0 0 0 0 100 0 357 19.56 13 0.24 0 0 0 0 100 0 77 9.40 2 0.02 3 0 3 0 94 2 272 7.07 6 0.04 1 0 1 0 98 4 178 26.17 83 2.11 4 0 5 0 91 1 9 13.15 9 0.12 0 0 1 0 98 3 11 120.87 279 32.97 1 0 2 0 97 tty aacd0 cpu tin tout KB/t tps MB/s us ni sy in id 0 179 119.18 307 35.77 1 0 2 0 97 0 237 119.75 353 41.25 2 0 3 0 96 0 286 120.31 330 38.74 1 0 2 0 96 1 30 96.41 382 35.92 1 0 2 0 97 2 52 85.32 447 37.27 7 0 5 0 88 0 39 87.55 402 34.40 10 0 4 0 86 0 9 121.10 426 50.32 2 0 3 0 94 0 119 115.22 393 44.16 2 0 2 0 95 1 1003 113.15 358 39.59 1 0 3 0 96 0 108 113.06 230 25.39 1 0 1 0 98 0 148 92.30 69 6.20 0 0 1 0 99 0 706 14.85 9 0.14 0 0 0 0 100 0 188 26.69 18 0.47 0 0 0 0 100 0 1309 108.58 234 24.81 4 0 4 0 92 0 849 95.10 433 40.18 2 0 3 0 95 0 152 119.58 349 40.77 1 0 3 0 96